Patents by Inventor David N. Kramer

David N. Kramer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5620527
    Abstract: A cleansing and disinfecting composition comprising an alkaline per-salt and a positively charged phase-transfer agent. The composition preferably also contains a surfactant. The alkaline per-salt is an alkaline water-soluble salt having hydrogen peroxide of crystallization. The positively charged phase-transfer agent is preferably a quaternary ammonium salt. The composition may be formulated as a cream, a bulk powder, a solution or tablets. It may also be incorporated in wipes, sponges and brushes. The compositions of this invention find utility in health care, as disinfectants in surgical applications, and as decontaminating agents. Specific uses include skin cleansing and disinfecting, treatment for exposure to toxic plants such as poison ivy, treatment for exposure to industrial and agricultural chemicals such as herbicides and pesticides, and cleansing and disinfecting surfaces and sensitive equipment.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: April 15, 1997
    Assignee: The Sterilex Corporation
    Inventors: David N. Kramer, Philip A. Snow
  • Patent number: 5320805
    Abstract: A method of using a chemical composition as a cleanser, sanitizer, disinfectant, sporicide, fungicide and sterilizer by applying an effective amount of the composition to objects and surfaces requiring the application of a cleanser, sanitizer, disinfectant, sporicide, fungicide or sterilizer, the composition including from about 10% to about 90% by weight of an alkaline water-soluble salt having hydrogen peroxide of crystallization and from about a fraction of a percent to about 30% by weight of a positively charged phase-transfer agent selected from the group consisting of a phosphonium salt, a sulfonium salt, and a quaternary ammonium salt, said composition forming both a water and lipid soluble phase-transfer ion-pair.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: June 14, 1994
    Assignee: Sterilex Corporation
    Inventors: David N. Kramer, Shira Kramer
  • Patent number: 4941989
    Abstract: A cleansing and disinfecting composition comprising an alkaline per-salt and a positively charged phase-transfer agent. The composition preferably also contains a surfactant. The alkaline per-salt is an alkaline water-soluble salt having hydrogen peroxide of crystallization. The positively charged phase-transfer agent is preferably a quaternary ammonium salt. The composition may be formulated as a cream, aa bulk powder, a solution or tablets. It may also be incorporated in wipes, sponges and brushes. The compositions of this invention find utility in health care, as disinfectants in surgical applications, and as decontaminating agents. Specific uses include skin cleansing and disinfecting, treatment for exposure to toxic plants such as poison ivy, treatment for exposure to industrial and agricultural chemicals such as herbicides and pesticides, and cleansing and disinfecting surfaces and sensitive equipment.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: July 17, 1990
    Assignee: Ridgely Products co., Inc.
    Inventors: David N. Kramer, Philip A. Snow
  • Patent number: 4850729
    Abstract: A decontaminating composition and delivery system therefor. The decontaminating composition is prepared by combining a "per-salt", an activator for hydrogen peroxide which effects free radical formation, both of which are in a dry form and an aqueous solution comprised of a nonvolatile alcohol and a surface active agent. The "per-salt" of the present invention is a basic water-soluble salt such as percarbonate, perborate, persilicate or perphosphate which releases hydrogen peroxide in aqueous solution. While not true per-salts in the strict chemical sense, they are otherwise conventional salts containing hydrogen peroxide of crystallization which is released in aqueous solution. The decontaminating composition and delivery system comprise a dispenser containing, in separate compartments, the various components as aforesaid which are thoroughly mixed prior to being dispensed onto the surface to be treated.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: July 25, 1989
    Assignee: David N. Kramer
    Inventors: David N. Kramer, Philip A. Snow
  • Patent number: 4847089
    Abstract: A cleansing and disinfecting composition comprising an alkaline per-salt and a positively charged phase-transfer agent and absorbent materials, such as sponges, impregnated therewith. The composition preferably also contains one or more surfactants. The alkaline per-salt is an alkaline water-soluble salt having hydrogen peroxide of crystallization. The positively charged phase-transfer agent is preferably a quaternary ammonium salt. The composition may be formulated as a cream, a bulk powder, a solution or tablets. It ay also be incorporated in wipes, sponges and brushes. In one embodiment, one surface of the impregnated sponge is an abrasive material. The compositions of this invention find utility in health care, as disinfectants in surgical applications, and as cleansing and decontaminating agents.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: July 11, 1989
    Assignee: David N. Kramer
    Inventors: David N. Kramer, Philip A. Snow
  • Patent number: 4789638
    Abstract: Process and apparatus for the detection of hydrazine and hydrazine derivatives. For the detection of hydrazine and volatile hydrazine derivatives in air, preferred is a detector tube having iodate or periodate ion in a reactor zone and an iodine sensitive colorimetric indicator in a separate indicator zone. The colorimetric indicator may be an addition-complex type indicator, a redox sensitive dye precursor or an iodination type dye precursor. The hydrazine or hydrazine derivative contacts the iodate or periodate ion in the reactor zone to form iodine which diffuses or is drawn into the indicator zone where it contacts the indicator which then undergoes a color change. In a particularly preferred embodiment of the detector tube, an oxidizing metal ion is present in the reactor zone and, when a redox sensitive indicator is employed, in the indicator zone.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: December 6, 1988
    Inventors: David N. Kramer, Philip A. Snow
  • Patent number: 4676880
    Abstract: The photochemical decarbonylation of lactones and the method of detecting microquantities of .alpha.,.alpha.-diarylglycolate esters comprising an acidic reaction mixture containing the esters and naphthols producing a lactone, decarbonylating the lactone by irradiation and forming a colored solution.
    Type: Grant
    Filed: May 29, 1969
    Date of Patent: June 30, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: David N. Kramer, Thomas N. Oeltmann
  • Patent number: 4198281
    Abstract: The present invention relates to a solvator plug for replenishing aqueous or non-aqueous solvents in devices such as electrochemical sensor cells. The plug includes a housing adapted to communicatingly mount to a cell or the like which houses a selected solvent for absorption by the cell. The solvent is maintained within the housing by means of an absorbant material or membrane and is delivered by virtue of osmotic pressure differences.
    Type: Grant
    Filed: June 12, 1979
    Date of Patent: April 15, 1980
    Assignee: Catalyst Research Corporation
    Inventors: David N. Kramer, Stephen E. Long, Alan A. Schneider